body {
    width: 100%;
    min-width: 320px;
    margin: 0 auto;
    font-size: 14px;
    color: #666;
    font-family: system-ui, -apple-system;
    line-height: 1.5;
}

a {
    color: #666;
    text-decoration: none;
}

img {
    /* 去除图片底部的空白空隙 */
    vertical-align: middle;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none
}

.app {
    height: 45px;
}

.app ul li {
    float: left;
    height: 45px;
    background-color: #333333;
    text-align: center;
    line-height: 45px;
    color: azure;
}

.app ul li:nth-child(1) {
    width: 8%;

}

.app ul li:nth-child(1) img {
    width: 10px;
}

.app ul li:nth-child(2) {
    width: 10%;
}

.app ul li:nth-child(2) img {
    width: 30px;
    vertical-align: middle;
}

.app ul li:nth-child(3) {
    width: 57%
}

.app ul li:nth-child(4) {
    width: 25%;
    background-color: #f63515;
}

/* 搜索 */
.search-wrap {
    position: fixed;
    height: 44px;
    width: 100%;
    background-color: #e50112;

    z-index: 999;
    overflow: hidden;
}

.search-btn {
    position: absolute;
    top: 0;
    left: 0;
    width: 44px;
    height: 44px;
}

.search-btn::before {
    content: "";
    display: block;
    width: 20px;
    height: 18px;
    background: url(../images/s-btn.png) no-repeat;
    background-size: 20px 18px;
    margin: 12px 0 0 15px;
}

.search-login {
    position: absolute;
    top: 0;
    right: 0;
    width: 44px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    color: rgb(255, 255, 255);
}

.search {
    position: relative;
    height: 30px;
    background-color: rgb(251, 251, 251);
    margin: 0 44px;
    border-radius: 15px;
    margin-top: 7px;
}

.search input {
    position: absolute;
    top: 0;
    margin-left: 0px;
    left: 60px;
    right: 40px;
    width: 65%;
    height: 93%;
    padding-left: 30px;
    /* 去掉边框颜色 */
    border: 0;
    outline: none;
    border-radius: 15px;
}

.jd-icon {
    width: 20px;
    height: 15px;
    position: absolute;
    top: 8px;
    left: 10px;
    background: url('/images/jd.png') no-repeat;
    background-size: 20px 15px;
}

.jd-icon::after {
    position: absolute;
    content: "";
    display: block;
    width: 1px;
    height: 15px;
    background-color: #ccc;
    top: 0;
    right: -8px;
}

.sou {
    position: absolute;
    top: 8px;
    left: 40px;
    width: 18px;
    height: 15px;
    background-color: antiquewhite;
    background: url(../images/jd-sprites.png) no-repeat -81px 0;
    background-size: 200px auto;

}


/* 主体内容部分 */
.slide img {
    width: 100%;
}

/* 品牌日 */
.brand {
    overflow: hidden;
    border-radius: 10px 10px 0 0;
}

.brand div {
    float: left;
    width: 33.33%;
}

.brand div img {
    width: 100%;
}

.nav a {
    float: left;
    width: 20%;
    text-align: center;
}

.nav a img {
    width: 40px;
    margin: 10px 0;
}

.nav a span {
    display: block;
}

.news a {
    margin-top: 10px;
    box-sizing: border-box;
}

.news a {
    float: left;
}

.news img {
    width: 100%;
}

.news a:nth-child(1) {
    width: 50%;
    border: 1px solid #ccc;
}

.news a:nth-child(n+2) {
    width: 25%;
    border: 1px solid #ccc;
}




















/*  */